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<div class="title">ioctl.h File Reference</div>  </div>
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<div class="textblock"><code>#include &lt;sys/types.h&gt;</code><br />
<code>#include &lt;sys/uio.h&gt;</code><br />
<code>#include &lt;sys/ioctl.h&gt;</code><br />
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<p><a href="ioctl_8h_source.html">Go to the source code of this file.</a></p>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Header file to share definitions between the <a class="el" href="ioctl_8c.html">ioctl.c</a> example file system and the <a class="el" href="ioctl__client_8c.html">ioctl_client.c</a> test program.</p>
<div class="fragment"><div class="line"><span class="comment">/*</span></div><div class="line"><span class="comment">  FUSE-ioctl: ioctl support for FUSE</span></div><div class="line"><span class="comment">  Copyright (C) 2008       SUSE Linux Products GmbH</span></div><div class="line"><span class="comment">  Copyright (C) 2008       Tejun Heo &lt;teheo@suse.de&gt;</span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment">  This program can be distributed under the terms of the GNU GPL.</span></div><div class="line"><span class="comment">  See the file COPYING.</span></div><div class="line"><span class="comment">*/</span></div><div class="line"></div><div class="line"><span class="preprocessor">#include &lt;sys/types.h&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;sys/uio.h&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;sys/ioctl.h&gt;</span></div><div class="line"></div><div class="line"><span class="keyword">enum</span> {</div><div class="line">        FIOC_GET_SIZE   = _IOR(<span class="charliteral">&#39;E&#39;</span>, 0, <span class="keywordtype">size_t</span>),</div><div class="line">        FIOC_SET_SIZE   = _IOW(<span class="charliteral">&#39;E&#39;</span>, 1, <span class="keywordtype">size_t</span>),</div><div class="line"></div><div class="line">        <span class="comment">/*</span></div><div class="line"><span class="comment">         * The following two ioctls don&#39;t follow usual encoding rules</span></div><div class="line"><span class="comment">         * and transfer variable amount of data.</span></div><div class="line"><span class="comment">         */</span></div><div class="line">        FIOC_READ       = _IO(<span class="charliteral">&#39;E&#39;</span>, 2),</div><div class="line">        FIOC_WRITE      = _IO(<span class="charliteral">&#39;E&#39;</span>, 3),</div><div class="line">};</div><div class="line"></div><div class="line"><span class="keyword">struct </span>fioc_rw_arg {</div><div class="line">        off_t           offset;</div><div class="line">        <span class="keywordtype">void</span>            *buf;</div><div class="line">        <span class="keywordtype">size_t</span>          size;</div><div class="line">        <span class="keywordtype">size_t</span>          prev_size;      <span class="comment">/* out param for previous total size */</span></div><div class="line">        <span class="keywordtype">size_t</span>          new_size;       <span class="comment">/* out param for new total size */</span></div><div class="line">};</div></div><!-- fragment --> 
<p class="definition">Definition in file <a class="el" href="ioctl_8h_source.html">ioctl.h</a>.</p>
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